Nursing bottle



G. H. DONALDSON NURSING BOTTLE Flled Feb 9 1926 Sept. 21 1976.

Patented Sept. 21 1926.

GEORGE H. 'DONALDSON, OF WEST HARTFORD, CONNECTICUT.

Nunsme BOTTLE.

Application filed February 9, 1926. Serial No. 87,065.

This invention relates to those bottles which are designed to contain liquid food forinfants and that are provided with the usual flexible nipples through which the food is withdrawn by the infants.

The object of the invention'is to produce: a readily cleaned,-sanitary bottle for such purposes which is so designed that there will be no tendency to create a vacuum in the bottle or for the nipple to collapse when the I child is withdrawing food, thus enabling the child to completely empty the bottleof food without undue effort and-without hability of sucking in air instead of food. I

This object is attained by shaping the bottle with a mouth through which the food is entered and upon which the feeding. nipple is placed, and providing a supplemental mouth with a passage therefrom to near the bottom of the bottle through which air may enter as the food is Withdrawn, the air mouth,

being on one side of the center and the food mouth being on the other side of the center and sufficiently above the air mouth to leave an air space above the level of the food when the bottle is filled for use, the an in this space rising to the bottom when the bottle is sectional shapes to which the bottle may be made. Fig.6 shows a bottle of different outline but having the same co-operatmg characteristics. f p j The body 1 of the bottle may be made of any suitable material, preferably glass or porcelain, and may have any desired outline and cross sectional shape.

mouth 2 on which an ordinary rubber nipple may be placed is desirably extended obliquely to the axis of the bottle and opens on one side so that when the bottle is tipped or inverted all of the contents will easily flow out. On the other side'of the body of the bottle, either inside or outside, is an air passage 3 The feeding that extends from near the bottom 4a; the

a1r mouth 5 which may or may not have a.

common nipple applied to it. The air mouth 5 is some distance below the food mouth 2.

The bottle is filled with liquid food to ap- 1 proximately the level indicated'on 1 and when thus filled an air space 6 is left d between the top of the liquid and thefoodmouth when the bottle is upright. When the bottle is inverted or tipped over to pre- Y sent the foodmouth toward the child to be fed the air in the space 6, as in any common bottle having air above liquid contained therem, uses to the bottom, the liquid taking its place at the top. While the bottle is thus I being turned the liquid which is in the air] passage 3 flows down the passage into the mam bodyof the bottle leaving-the air passage empty. WVith the bottle in this 'conditlon an lnfant can suck out the entire liquid I contents with slight effort as there is no tendency for a vacuum to be formed by the withdrawal of the llquid food, on account of the free entry of air through the air passage as the llquidis withdrawn. There is no chance for the infant to draw in air as a soft nipple will not collapse under these cir-' cumstances, and asjthe spacev at the mouth from which the food is being withdrawn is' occupied by the liquid food when .the bottle is inverted and inuse all of the liquid con tents can be. withdrawn without sucking air. v

This bottle can be cheaply manufactured. It is easily cleaned. It can be quickly filled with liquid food or-emptied when it is being washed. It may be heated or cooled like the require.

The invention claimed is bott-lein. common use as the circumstances 1. A nursing bottle havlng two mouthse 1 one at'a higher level than the other andthe lower mouth having an air-passage extend:

ing obliquely in a straight line therefrom to near the bottom of the bottle.

2. A nursing bottle having two ter andthe other opening on the-otherside of the center and at a low-er level, the latter mouth being connected by anair passage to near the bottom of the bottle said airpassage extendingobliquely to the axis of the 7 bottle; V j

mouths, one opening obliquely on one side of the cen-- 5, from the body having a mouth that' is V 3. A'uursing bottle having a body designed to be filled witlyllquldfood, an all passage on one slde ofthebody and opening thereinto meal-the bottom, and an extension at a higher level than the mouth of the an sage, whereby When the bottle and air paspasliquid and the 'moutli of said extension the .voluinetric capacity of said air passage belug substantially equal to thevolumetric capacity of said air space. V v

. GEORGE H. DONALDSON. 

